| Minimum Carrier Weight | 45 ton (US) 45 ton (US) |
| Maximum Carrier Weight | 52 ton (US) 52 ton (US) |
| Weight | 2059 lb 934 kg |
| Attachment Pin Diameter - Stick (Front) | 3.94 in 100 mm |
| Attachment Pin Diameter - Link (Rear) | 3.94 in 100 mm |
| Pin Spread - Minimum | 20.83 in 529 mm |
| Pin Spread - Maximum | 24.92 in 633 mm |
| Lifting Eye Working Load Limit | 44092 lb 20000 kg |
| Width - Machine Interface | 25.77 in 654.5 mm |
| Width - Attachment Interface | 17.05 in 433 mm |
My Account
Sign In
Welcome! Sign In to personalize your Cat.com experience
If you already have an existing account with another Cat App, you can use the same account to sign in here
Register Now
One Account. All of Cat.
Your Caterpillar account is the single account you use to log in to select services and applications we offer. Shop for parts and machines online, manage your fleet, go mobile, and more.
Welcome Back!
My Account Dashboard
Account Information
Site Settings
Security
Pin Grabber Couplers Pin Grabber Coupler - Trenching Profile (TB-Linkage): 390-0904
Request A Price Find DealerKey Specs
- Minimum Carrier Weight
- 45 ton (US)
- 45 ton (US)
- Maximum Carrier Weight
- 52 ton (US)
- 52 ton (US)
- Weight
- 2059 lb
- 934 kg
Overview
Cat® Pin Grabber Couplers bring another level of productivity and versatility to your operation. Add the ability to change attachments quickly and conveniently to your operation, while staying aligned to worldwide safety standards.
Features At A Glance
Boost Productivity
- Get back to work faster with the capability to change attachments in seconds
- Attachments are shareable between similar sized excavators
- Couplers are weighted to handle big payloads, so you do not have to compromise on bucket size
- Do more with your equipment. Added versatility allows you to switch easily from digging, grading, material handling, compacting soil, breaking rocks, and more.
- Trenching widths available for certain coupler sizes:
- Saves backfill time and material
- Keeps the widest part of the coupler inside the digging width of 24- and 30-inch buckets
- Fully compatible with wider buckets and the same attachments as the standard models
- Pin Grabber Performance Buckets – recessed pins for an even further reduced tip radius
- Pick up buckets in reverse position to clean out square corners
Reliable Power and Strength
- Redundant locking system secures attachments:
- Primary wedge – Blocks pin movement like a deadbolt lock
- Secondary latch – Indicates to operator if coupler is either open or closed. Hinged to clamp the pin in place.
- Two spring-loaded arms – Assure secondary latch stays closed
- In the event you experience a loss of hydraulic pressure, redundant locking systems keep attachment in place
- Short coupler profile maintains tight tip radius, breakout force, and digging power
- Cast frame pieces made from abrasion-resistant steel
- Integrated, centered lift eye handles wide range of shackle, chain, and cable. Its interior shape keeps loads stable.
- Couplers without a lift eye are available in Japan to meet local lifting restrictions.
Top-of-mind Safety
- Visual and audible indicate to operator attachments are secure to the coupler.
- Greasing block provides a primary and easily accessible grease point.
- Operating procedures are simple and intuitive.
- Compliant with worldwide safety standards: ISO13031, EN474, and AS 4772:2008.
- Simplify on-the-job maintenance and improve reliability with the debris shield covering and protecting critical coupler components.
Boost Efficiency and Productivity with Integrated Technologies
- Never waste time looking for your couplers again. Cat asset tracking is available on select Pin Grabber Couplers.
- Track your entire fleet of attachments and machines from one source. Couplers with asset tracking can be viewed in VisionLink®alongside Product Link™subscribed equipment.
- Keep your assets secure. Couplers with an asset tracker send an alert if they leave an easy-to-setup site boundary.
Product Specifications for Pin Grabber Coupler - Trenching Profile (TB-Linkage): 390-0904
See how Pin Grabber Coupler - Trenching Profile (TB-Linkage): 390-0904 compares against frequently compared products.
Couplers - Excavator
Pin Grabber Coupler - Trenching Profile (TB-Linkage): 390-0904
Selected
- Minimum Carrier Weight
- 45 ton (US)
- 45 ton (US)
- Maximum Carrier Weight
- 52 ton (US)
- 52 ton (US)
- Weight
- 2059 lb
- 934 kg
Couplers - Excavator
Pin Grabber Coupler (DB-Linkage): 389-8070
- Minimum Carrier Weight
- 30 ton (US)
- 30 ton (US)
- Maximum Carrier Weight
- 40 ton (US)
- 40 ton (US)
- Weight
- 1369 lb
- 621 kg
Couplers - Excavator
Pin Grabber Coupler (TB-Linkage): 390-1017
- Minimum Carrier Weight
- 45 ton (US)
- 45 ton (US)
- Maximum Carrier Weight
- 52 ton (US)
- 52 ton (US)
- Weight
- 2082 lb
- 944 kg
assignment Product Brochures and More Are Ready to Download!
Caterpillar product brochures and other informational documents are available for your growing business.
Media Gallery
Photos
Videos
TB-Linkage Trenching Pin Grabber Coupler
Site clean-up with Pin Grabber Coupler, Pro Plus thumb, and bucket.
Pin Grabber Couplers are simple to maintain with one central greasing point.
Pin Grabber Coupler locking mechanism engaged
Pin Grabber Coupler clearing brush with rake and Pro Plus thumb
Using the lifting eye of the Pin Grabber Coupler to relocatte a trench box.
Cat Pin Grabber Couplers | Jobsite Confidence
Cat Pin Grabber Couplers | Jobsite Productivity
Cat Pin Grabber Couplers | Built to Last
Cat Pin Grabber Couplers | Easy to Use
Cat Pin Grabber Couplers | Standards and Compliance
Cat Pin Grabber Couplers | How It Works
Cat Pin Grabber Couplers | Operation and Maintenance
Take the interactive virtual product tour to explore the great features and benefits of the Pin Grabber Coupler - Trenching Profile (TB-Linkage): 390-0904
Start Pin Grabber Coupler - Trenching Profile (TB-Linkage): 390-0904 Tour
close
Related Products
Maximize your equipment investment with Cat related products
Excavators
